－I’m sorry for _______ in time.
—That’s all right.
| A．getting it not done | B．not getting it done |
| C．getting not it done | D．getting not to do it |
The reason was _____ I was busy with my work at that time.
| A．why | B．because of | C．that | D．what |
. He misunderstood _____ I said.
| A．that | B．when | C．where | D．what |
. The trouble is _____ we are short of hands.
| A．what | B．that | C．how | D．why |
The guide showed the travelers _____ of the factory.
| A．in | B．out | C．off | D．around |
We should mind our behaviour ______ public.
| A．at | B．in | C．on | D．out |